I recently picked up, in great condition, an Adcom 5500 thinking i would use the chassis and power supply to house an Aleph J clone I've been wanting to build. The chassis has plenty of heat-sink and all the connections I would want. But in my haste i neglected to check the power supply schematic... I was seduced by the gleaming pics of BEER CAN SIZE CAPS! 60 Volts DC is way too much for the Aleph J.
1. Is it possible to replace the transformer with a lower voltage transformer, maybe even two (one for each channel) and use the existing PSU circuitry?
2. I was planning on selling the power amp boards on Ebay, should I sell off the complete power supply and build my own? (it'll be difficult parting with 4 18,000uF Capacitors!)
3. Build speakers that will handle the 200 watts per channel and enjoy the Adcom 5500 in it original glory?
It's worth mentioning option three might not pass the partner test as I am just completing, quite slowly, some very reasonable sized diy bookshelf speakers to replace some old Sansui sp200's that a driver went on.
I have very good electronics building and modification skills but circuit design is a bit over my head currently. Any help is greatly appreciated!
1. Is it possible to replace the transformer with a lower voltage transformer, maybe even two (one for each channel) and use the existing PSU circuitry?
2. I was planning on selling the power amp boards on Ebay, should I sell off the complete power supply and build my own? (it'll be difficult parting with 4 18,000uF Capacitors!)
3. Build speakers that will handle the 200 watts per channel and enjoy the Adcom 5500 in it original glory?
It's worth mentioning option three might not pass the partner test as I am just completing, quite slowly, some very reasonable sized diy bookshelf speakers to replace some old Sansui sp200's that a driver went on.
I have very good electronics building and modification skills but circuit design is a bit over my head currently. Any help is greatly appreciated!
